[3.X] What is Official/1st Party 3E D&D Material

[Psyren]

WotC.

You know, I'm starting to regret making this thread. In my mind it was a relatively simple question, and one I'd seen threads on before.

Seems I have been incredibly unclear with my intent in asking the question.

There are three categories for WotC "endorsement" as I see them:

1) Stuff they've published themselves
2) Stuff they licensed to another publisher
3) Everything else

The strict definition of "first-party" is the #1, while some expand it to include #1 and #2. I'm not aware of any other ways that WotC could or would "endorse" something.